N-alpha-苄氧羰基-beta-(3-氰基)-L-丙氨酸

异丁烯

(S)-tert-butyl isoxazolidine-3-carboxylate

t-butyl (3S)-2-(2,3:5,6-di-O-isopropylidene-α-D-mannofuranosyl)-3-isoxazolidinecarboxylate

t-丁基(2S)-2-[(苄基氧基羰基氨基)]-4-羟基丁酸酯